Due to the different methods of mining, ore beneficiation and transportation capacity of the plant and sent to a concentrator for processing blocks of different ore, as mined ore open, bulk 1000-1500 mm; ore underground mining, large blocks 300 to 600 mm. According to the current technical conditions and equipment performance, it is difficult to pulverize such a large ore to the particle size required for sorting. In the production of mineral processing industry, the grinding is carried out in stages. First, using a mechanical crusher crushing the oversized mineral to several tens of millimeters or a few millimeters, and then use the grinding machine to grind the ore continues size sorting requirements. At present, the crushing ratio of the crusher used in the ore dressing production is very small, generally 3 to 5 . Therefore, the crushing operation is divided into three sections: coarse crushing, medium crushing and fine crushing. The grinding operation is usually divided into one section (rough grinding) and two sections (fine grinding). When the particle size requirement is very fine, there are three sections of grinding or coarse concentrate. , the mine is re-grinding.
SHANDONG PIPESOL is a high-tech professional manufacturer for water supply and drainage valves and pipe fittings,the main valves are non rising stem resilient seated wedge gate valves,hivent double orifice air release and vacuum valves,combined Valve tees, double eccentric center butterfly valves and so on.Our gate valves can be produced as BS5163 and DIN3352.The hivent double orifice air release and vacuum valve and combined valve tees have all got the national patent.Our products are produced by using high qualtiy raw materials and high-tech technology and strice management,in order to ensure the highest levels of product quality and safety.
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